Question

更新

我注意到一种奇怪的行为！我在这个服务中有几个方法，我得到不同的响应（一个映射正确，另一个看起来很奇怪）。我更新了代码。

someService.ts：

        import {Http, Response} from '@angular/http';
        import {Observable} from 'rxjs/Observable';
        import 'rxjs/add/operator/map';

        @Injectable()
        export class someService {

          constructor(private _http:Http) {  }

            getSession():Observable<IUser> { // i get a response like that [object object]
          this.getsession = this._http.get("/url");
          return this.getsession.map((response) => <IUser> response.json());
          }

        getUser():Observable<IUser> { // i get the the response object mapped here as one of the comments said the response doesn't have data object
          this.user = this._http.get("/url");
          return this.user.map(response => <User> response.json());
      }
        }

user.component.ts

import { Component, OnInit } from '@angular/core';
import {IUser} from "../common/user";
import {SomeService} from "../services/someService.service";

@Component({
  selector: "user",
  templateUrl: "./user.component.html",
})
export class User implements OnInit {
  user:IUser;

  constructor( private _someService:SomeService) {
  }

  getUser() {
    this._someService.getSession().subscribe((data) => {
      this.user = data; // the response looks like this: [object Object]
    }, (err) => {
      this.errorMsg = ""
    });
  }
  ngOnInit():void {
  }
}

我从休息中得到的JSON对象：

{"uid":"***","name":"Test","mail":null,"gname":null,"sn":null,"isEn":true,"user":"**"}

Answer 1

尝试在顶部添加此导入

如果您想要所有运营商

import 'rxjs/Rx';

如果您只想要地图运算符

import 'rxjs/add/operator/map';

如果两者都不起作用，请尝试重新启动IDE

Observable无法识别地图运算符

1 个答案: